Shopping advice / water-cooled spindle

Just logging here a few more notes now that I am up and running, if anyone checks this later:

  • I modified the post-processor to add a delay after the spindle activation command, since I have programmed a 5second RPM ramp up in my VFD, so a ~5second delay is required before allowing the program to move and cut things. I just added a “G4 P5.0” command in the prologue section of my post-processor.

  • I am also trying to get into the best-practice habit of warming-up the spindle when it has been off for more than a couple of hours. For now I do it manually by using M3 commands, but it will get old quickly so I think I’ll just copy paste the following lines in a warmup.gcode file that I can just load and execute:

M3S2000
G4 P60.0
M3S4000
G4 P60.0
M3S6000
G4 P60.0
M3S8000
G4 P60.0
M3S10000
G4 P60.0
M3S12000
G4 P60.0
M3S14000
G4 P60.0
M3S16000
G4 P60.0
M3S18000
G4 P60.0
M3S20000
G4 P60.0
M3S22000
G4 P60.0
M3S24000
G4 P60.0
M5

That’s a 12 minute ramp-up to max RPM, it should do the job of getting the bearings up to nominal dimension and the grease to nominal temperature.

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